UD Sifu B-Tab box mod is an innovative device, which can be used as a 70W regulated MOD, Ohm Meter and Coil Burning Deck. Moreover, it can power for automatic coil jig (not included). The Sifu named after Chinese character on its cover, which means teacher. It is a great choice for vapor fans.

Note: Not recommended for beginners, and we will not accept changing of returning for this.UD Sifu B-Tab Box MOD With DIY Tool Operation Guide:1. Turn on/ off: Press the power button 5 times continuously within 3 seconds to turn on/ off. 2. Standby mode: Display will darken in 5 seconds without working, display off in 15 minutes without working , then press any button can bright the screen.3. Overtime protection: Working continuously more than 10 seconds, screen show "over time" and stops output. It will restore when you fire it up again.4. Low voltage Alarm: Screen will show "Low battery" when voltage is lower than 3.3V, please recharge or replace battery in time.5. Switch of two threads: Circuit board will switch automatically and screen will distinguish when singly use vaping port or coil burning port. When both ports are installed by the work piece, press both power fire button "+" "-" button in 3 seconds.6. Resistance test: Testing resistance function is prior when alligator clips are installed to the "+" "-" ports.7. Resistance testing return to "0": Connect the "+" "-" alligator clips, then resistance will return to 0 when press the fire button 3 times in 2 seconds.8. Function transformation: Under standby mode, press power button 3 times continuously within 3 seconds to enter menu mode. "+" "-" works as switch button, enter to confirm it by pressing power button.9. Power adjustment: Press "+" "-" can adjust power under standby mode of VW&TC.10. Supply sensitivity adjustment11. Screen display adjustment12. Initial resistance checking13. Button lock and unlock14. Add temperature compensation system15. Add shortcut key setting16. Add TCR mode17. Add power curve output mode18. Online upgrading19. Add SN number20. Overheating protection21. Battery reverse22. Short circuit protection23. Battery protection24. Anti-dry burning protection